Lac Montchenu is a Lake located in Lac-au-Brochet; La Haute-Côte-Nord, Quebec and has an elevation of 311 meters.

• Latitude: 48° 24' 3'' North   (decimal: 48.4008579)
• Longitude: 69° 46' 40'' West   (decimal: -69.7778332)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 311 meters
• Location: Lac-au-Brochet; La Haute-Côte-Nord
• Atlas of Canada Locator Map: Lac Montchenu
• GPS Coordinate Locator Map: Lac Montchenu Lat/Long